./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/openbsd_cmemset-alloca-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_aab42970-7ef5-4dfc-8b95-0ee719c55923/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_aab42970-7ef5-4dfc-8b95-0ee719c55923/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_aab42970-7ef5-4dfc-8b95-0ee719c55923/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_aab42970-7ef5-4dfc-8b95-0ee719c55923/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/openbsd_cmemset-alloca-2.i -s /tmp/vcloud-vcloud-master/worker/working_dir_aab42970-7ef5-4dfc-8b95-0ee719c55923/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_aab42970-7ef5-4dfc-8b95-0ee719c55923/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 465ac75349cd5ac4e4a553bae7fb01de4c2c6177 ........................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 09:01:39,502 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:01:39,504 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:01:39,512 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:01:39,513 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:01:39,513 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:01:39,514 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:01:39,516 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:01:39,517 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:01:39,518 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:01:39,518 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:01:39,519 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:01:39,519 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:01:39,520 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:01:39,521 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:01:39,522 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:01:39,522 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:01:39,523 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:01:39,525 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:01:39,526 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:01:39,528 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:01:39,528 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:01:39,530 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:01:39,530 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:01:39,536 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:01:39,536 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:01:39,537 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:01:39,537 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:01:39,538 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:01:39,539 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:01:39,539 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:01:39,540 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:01:39,540 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:01:39,541 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:01:39,542 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:01:39,542 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:01:39,543 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:01:39,543 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:01:39,543 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:01:39,545 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:01:39,549 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:01:39,550 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_aab42970-7ef5-4dfc-8b95-0ee719c55923/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-10-22 09:01:39,562 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:01:39,562 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:01:39,563 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:01:39,563 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:01:39,563 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:01:39,564 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-10-22 09:01:39,564 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-10-22 09:01:39,564 INFO L138 SettingsManager]: * Use old map elimination=false [2019-10-22 09:01:39,564 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-10-22 09:01:39,564 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-10-22 09:01:39,564 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-10-22 09:01:39,565 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:01:39,565 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 09:01:39,565 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 09:01:39,565 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:01:39,565 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-10-22 09:01:39,565 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-10-22 09:01:39,565 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-10-22 09:01:39,566 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 09:01:39,566 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-10-22 09:01:39,566 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:01:39,566 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-10-22 09:01:39,566 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:01:39,566 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:01:39,567 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-10-22 09:01:39,567 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:01:39,567 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 09:01:39,567 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-10-22 09:01:39,568 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-10-22 09:01:39,568 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_aab42970-7ef5-4dfc-8b95-0ee719c55923/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 465ac75349cd5ac4e4a553bae7fb01de4c2c6177 [2019-10-22 09:01:39,595 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:01:39,605 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:01:39,608 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:01:39,609 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:01:39,609 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:01:39,610 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_aab42970-7ef5-4dfc-8b95-0ee719c55923/bin/uautomizer/../../sv-benchmarks/c/termination-memory-alloca/openbsd_cmemset-alloca-2.i [2019-10-22 09:01:39,658 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_aab42970-7ef5-4dfc-8b95-0ee719c55923/bin/uautomizer/data/2454786d6/034a89d8669042a6bfb692c7747957a9/FLAG49abb0e2a [2019-10-22 09:01:40,141 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:01:40,142 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_aab42970-7ef5-4dfc-8b95-0ee719c55923/sv-benchmarks/c/termination-memory-alloca/openbsd_cmemset-alloca-2.i [2019-10-22 09:01:40,157 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_aab42970-7ef5-4dfc-8b95-0ee719c55923/bin/uautomizer/data/2454786d6/034a89d8669042a6bfb692c7747957a9/FLAG49abb0e2a [2019-10-22 09:01:40,174 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_aab42970-7ef5-4dfc-8b95-0ee719c55923/bin/uautomizer/data/2454786d6/034a89d8669042a6bfb692c7747957a9 [2019-10-22 09:01:40,176 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:01:40,178 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 09:01:40,179 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:01:40,179 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:01:40,185 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:01:40,186 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:01:40" (1/1) ... [2019-10-22 09:01:40,188 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@410aa7ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:40, skipping insertion in model container [2019-10-22 09:01:40,188 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:01:40" (1/1) ... [2019-10-22 09:01:40,195 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:01:40,237 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:01:40,514 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:01:40,523 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:01:40,563 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:01:40,607 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:01:40,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:40 WrapperNode [2019-10-22 09:01:40,607 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:01:40,608 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 09:01:40,608 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 09:01:40,608 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 09:01:40,616 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:40" (1/1) ... [2019-10-22 09:01:40,627 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:40" (1/1) ... [2019-10-22 09:01:40,643 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 09:01:40,643 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:01:40,643 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:01:40,643 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:01:40,651 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:40" (1/1) ... [2019-10-22 09:01:40,652 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:40" (1/1) ... [2019-10-22 09:01:40,654 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:40" (1/1) ... [2019-10-22 09:01:40,654 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:40" (1/1) ... [2019-10-22 09:01:40,658 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:40" (1/1) ... [2019-10-22 09:01:40,661 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:40" (1/1) ... [2019-10-22 09:01:40,662 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:40" (1/1) ... [2019-10-22 09:01:40,664 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:01:40,664 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:01:40,664 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:01:40,664 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:01:40,665 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_aab42970-7ef5-4dfc-8b95-0ee719c55923/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:01:40,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 09:01:40,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 09:01:40,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 09:01:40,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:01:40,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:01:40,896 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:01:40,896 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-10-22 09:01:40,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:01:40 BoogieIcfgContainer [2019-10-22 09:01:40,897 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:01:40,898 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-10-22 09:01:40,898 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-10-22 09:01:40,901 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-10-22 09:01:40,902 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:01:40,902 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.10 09:01:40" (1/3) ... [2019-10-22 09:01:40,903 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@25a8c1d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 09:01:40, skipping insertion in model container [2019-10-22 09:01:40,903 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:01:40,903 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:40" (2/3) ... [2019-10-22 09:01:40,903 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@25a8c1d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 09:01:40, skipping insertion in model container [2019-10-22 09:01:40,903 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:01:40,903 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:01:40" (3/3) ... [2019-10-22 09:01:40,905 INFO L371 chiAutomizerObserver]: Analyzing ICFG openbsd_cmemset-alloca-2.i [2019-10-22 09:01:40,952 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-10-22 09:01:40,953 INFO L357 BuchiCegarLoop]: Hoare is false [2019-10-22 09:01:40,953 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-10-22 09:01:40,953 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:01:40,953 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:01:40,953 INFO L361 BuchiCegarLoop]: Difference is false [2019-10-22 09:01:40,953 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:01:40,954 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-10-22 09:01:40,968 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2019-10-22 09:01:40,992 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-10-22 09:01:40,992 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:01:40,992 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:01:40,998 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 09:01:40,998 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-10-22 09:01:40,998 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-10-22 09:01:40,998 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2019-10-22 09:01:40,999 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-10-22 09:01:40,999 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:01:40,999 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:01:41,000 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 09:01:41,000 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-10-22 09:01:41,005 INFO L791 eck$LassoCheckResult]: Stem: 7#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 5#L-1true havoc main_#res;havoc main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~ret8.base, main_#t~ret8.offset, main_~length~0, main_~n~0, main_~c~0, main_~nondetArea~0.base, main_~nondetArea~0.offset;main_~length~0 := main_#t~nondet4;havoc main_#t~nondet4;main_~n~0 := main_#t~nondet5;havoc main_#t~nondet5;main_~c~0 := main_#t~nondet6;havoc main_#t~nondet6; 8#L562true assume !(main_~length~0 < 1); 13#L562-2true assume !(main_~n~0 < 1); 6#L565-1true call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnStack(main_~n~0);main_~nondetArea~0.base, main_~nondetArea~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;cmemset_#in~dst.base, cmemset_#in~dst.offset, cmemset_#in~c, cmemset_#in~n := main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~c~0, main_~n~0;havoc cmemset_#res.base, cmemset_#res.offset;havoc cmemset_#t~post3.base, cmemset_#t~post3.offset, cmemset_#t~pre2, cmemset_~d~0.base, cmemset_~d~0.offset, cmemset_~dst.base, cmemset_~dst.offset, cmemset_~c, cmemset_~n;cmemset_~dst.base, cmemset_~dst.offset := cmemset_#in~dst.base, cmemset_#in~dst.offset;cmemset_~c := cmemset_#in~c;cmemset_~n := cmemset_#in~n; 11#L550true assume 0 != cmemset_~n % 4294967296;cmemset_~d~0.base, cmemset_~d~0.offset := cmemset_~dst.base, cmemset_~dst.offset; 3#L552-4true [2019-10-22 09:01:41,005 INFO L793 eck$LassoCheckResult]: Loop: 3#L552-4true cmemset_#t~post3.base, cmemset_#t~post3.offset := cmemset_~d~0.base, cmemset_~d~0.offset;cmemset_~d~0.base, cmemset_~d~0.offset := cmemset_#t~post3.base, 1 + cmemset_#t~post3.offset;call write~int(cmemset_~c, cmemset_#t~post3.base, cmemset_#t~post3.offset, 1);havoc cmemset_#t~post3.base, cmemset_#t~post3.offset; 9#L552-1true cmemset_#t~pre2 := cmemset_~n - 1;cmemset_~n := cmemset_~n - 1; 12#L552-2true assume !!(0 != cmemset_#t~pre2 % 4294967296);havoc cmemset_#t~pre2; 3#L552-4true [2019-10-22 09:01:41,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:41,009 INFO L82 PathProgramCache]: Analyzing trace with hash 889572236, now seen corresponding path program 1 times [2019-10-22 09:01:41,014 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:41,015 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767892798] [2019-10-22 09:01:41,015 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:41,015 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:41,015 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:41,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:41,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:41,132 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:01:41,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:41,134 INFO L82 PathProgramCache]: Analyzing trace with hash 51706, now seen corresponding path program 1 times [2019-10-22 09:01:41,134 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:41,134 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537814050] [2019-10-22 09:01:41,134 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:41,134 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:41,134 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:41,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:41,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:41,162 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:01:41,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:41,164 INFO L82 PathProgramCache]: Analyzing trace with hash 1298288271, now seen corresponding path program 1 times [2019-10-22 09:01:41,165 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:41,165 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553466861] [2019-10-22 09:01:41,166 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:41,166 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:41,167 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:41,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:41,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:41,219 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:01:41,461 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2019-10-22 09:01:41,539 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 09:01:41,539 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 09:01:41,540 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 09:01:41,540 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 09:01:41,540 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-10-22 09:01:41,540 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:01:41,540 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 09:01:41,540 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 09:01:41,541 INFO L131 ssoRankerPreferences]: Filename of dumped script: openbsd_cmemset-alloca-2.i_Iteration1_Lasso [2019-10-22 09:01:41,541 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 09:01:41,541 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 09:01:41,563 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:41,569 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:41,706 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 51 [2019-10-22 09:01:41,768 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:41,771 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:41,773 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:41,774 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:41,776 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:41,778 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:41,781 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:41,783 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:41,786 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:41,789 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:41,792 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:41,794 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:41,797 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:41,798 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:41,801 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:41,803 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:42,094 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 43 [2019-10-22 09:01:42,456 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 09:01:42,460 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-10-22 09:01:42,462 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-10-22 09:01:42,463 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:01:42,464 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 09:01:42,464 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:01:42,465 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:01:42,465 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:01:42,466 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 09:01:42,467 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 09:01:42,472 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:01:42,473 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-10-22 09:01:42,473 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:01:42,474 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:01:42,474 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:01:42,474 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:01:42,482 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 09:01:42,482 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 09:01:42,492 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:01:42,493 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-10-22 09:01:42,493 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:01:42,494 INFO L202 nArgumentSynthesizer]: 2 stem disjuncts [2019-10-22 09:01:42,494 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:01:42,494 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:01:42,503 INFO L400 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2019-10-22 09:01:42,503 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 09:01:42,548 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:01:42,549 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-10-22 09:01:42,549 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:01:42,550 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:01:42,550 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:01:42,550 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:01:42,553 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 09:01:42,553 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 09:01:42,567 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:01:42,567 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-10-22 09:01:42,568 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:01:42,568 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:01:42,568 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:01:42,568 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:01:42,570 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 09:01:42,570 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 09:01:42,572 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:01:42,572 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-10-22 09:01:42,579 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:01:42,580 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:01:42,580 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:01:42,580 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:01:42,586 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 09:01:42,586 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 09:01:42,792 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-10-22 09:01:42,847 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-10-22 09:01:42,848 INFO L444 ModelExtractionUtils]: 30 out of 34 variables were initially zero. Simplification set additionally 1 variables to zero. [2019-10-22 09:01:42,850 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-10-22 09:01:42,851 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-10-22 09:01:42,851 INFO L510 LassoAnalysis]: Proved termination. [2019-10-22 09:01:42,852 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cmemset_~d~0.offset, v_rep(select #length ULTIMATE.start_cmemset_~d~0.base)_1) = -1*ULTIMATE.start_cmemset_~d~0.offset + 1*v_rep(select #length ULTIMATE.start_cmemset_~d~0.base)_1 Supporting invariants [] [2019-10-22 09:01:42,862 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2019-10-22 09:01:42,871 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-10-22 09:01:42,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:42,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:42,908 INFO L256 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 09:01:42,909 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:01:42,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:42,924 INFO L256 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-22 09:01:42,924 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:01:42,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:42,958 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-10-22 09:01:42,959 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states. Second operand 3 states. [2019-10-22 09:01:42,998 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states.. Second operand 3 states. Result 32 states and 35 transitions. Complement of second has 5 states. [2019-10-22 09:01:42,998 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-10-22 09:01:42,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-10-22 09:01:43,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 28 transitions. [2019-10-22 09:01:43,001 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 28 transitions. Stem has 6 letters. Loop has 3 letters. [2019-10-22 09:01:43,002 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:01:43,002 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 28 transitions. Stem has 9 letters. Loop has 3 letters. [2019-10-22 09:01:43,003 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:01:43,003 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 28 transitions. Stem has 6 letters. Loop has 6 letters. [2019-10-22 09:01:43,003 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:01:43,004 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 35 transitions. [2019-10-22 09:01:43,007 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-10-22 09:01:43,009 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 0 states and 0 transitions. [2019-10-22 09:01:43,010 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-10-22 09:01:43,010 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-10-22 09:01:43,011 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-10-22 09:01:43,011 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 09:01:43,011 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 09:01:43,011 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 09:01:43,011 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 09:01:43,011 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-10-22 09:01:43,011 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-10-22 09:01:43,012 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-10-22 09:01:43,012 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-10-22 09:01:43,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.10 09:01:43 BoogieIcfgContainer [2019-10-22 09:01:43,018 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-10-22 09:01:43,018 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:01:43,018 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:01:43,019 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:01:43,019 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:01:40" (3/4) ... [2019-10-22 09:01:43,022 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 09:01:43,022 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:01:43,023 INFO L168 Benchmark]: Toolchain (without parser) took 2845.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 943.0 MB in the beginning and 1.1 GB in the end (delta: -141.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:01:43,024 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 960.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:01:43,024 INFO L168 Benchmark]: CACSL2BoogieTranslator took 429.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 941.7 MB in the beginning and 1.1 GB in the end (delta: -178.9 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:43,025 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:43,025 INFO L168 Benchmark]: Boogie Preprocessor took 20.58 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:43,025 INFO L168 Benchmark]: RCFGBuilder took 233.15 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:43,026 INFO L168 Benchmark]: BuchiAutomizer took 2120.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:43,026 INFO L168 Benchmark]: Witness Printer took 3.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:43,030 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 960.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 429.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 941.7 MB in the beginning and 1.1 GB in the end (delta: -178.9 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 34.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.58 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 233.15 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2120.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 11.5 GB. * Witness Printer took 3.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * d + unknown-#length-unknown[d] and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 20 SDtfs, 19 SDslu, 7 SDs, 0 SdLazy, 1 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital138 mio100 ax113 hnf98 lsp82 ukn94 mio100 lsp56 div211 bol100 ite100 ukn100 eq169 hnf64 smp91 dnf100 smp100 tf100 neg98 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 55ms VariablesStem: 6 VariablesLoop: 3 DisjunctsStem: 2 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 8 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...